Author: Robert Hyatt
Date: 05:03:30 09/24/98
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On September 24, 1998 at 05:33:51, Jari Huikari wrote: >It seems that finally alpha-beta works with my new Nero 4... > >Ordering the moves at first ply helps to find cutoffs early. In deeper >plys I found such improvement(?) that I divide the legal moves into two >groups: captures and non-captures. Captures are examined first because >they should much more probably produce a cutoff than non-captures. Or >what do you think? > > Jari > >P.S. Latest version of Nero http://www.math.jyu.fi/~huikari/NERO4.ZIP You ask the wrong question. It should be "has anyone *not* tried this?" :) there are better ordering strategies. Try moves in this order: 1. hash move 2. winning captures (static exchange says gain > 0) 3. even exchanges (SEE says gain == 0) 4. killer moves 5. history moves 6. remainder of moves including moves where SEE says gain < 0
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